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Unread 01-01-2013, 01:07 PM   #1
janders82
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2010 JK Wrangler 
 
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Gears from 2010 fit 2012??

Want to know if gears from my 2010 will fit in a 2012. Both JKU Sports...

Thanks for the help!

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2010 JKU Automatic w/ 5.13 Gears
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Unread 01-01-2013, 01:23 PM   #2
SubAtomicGenius
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2011 JK Wrangler 
 
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Sport/Sahara: D30/D44 JK, yes gears are interchangable.
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Unread 01-03-2013, 10:56 PM   #3
RubiconTested
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Quote:
Originally Posted by janders82 View Post
Want to know if gears from my 2010 will fit in a 2012. Both JKU Sports...

Thanks for the help!
Yes. However if they are 4.88 or higher numericaly, then you'll need a programmer like the AEV Procal or you'll go into limp mode within a few miles on the 2012.

Austin
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Unread 01-03-2013, 11:02 PM   #4
austinaubinoe
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Originally Posted by RubiconTested View Post
Yes. However if they are 4.88 or higher numericaly, then you'll need a programmer like the AEV Procal or you'll go into limp mode within a few miles on the 2012.

Austin
WTF!?!? Why would throwing in new gears mess up the computer?
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Unread 01-03-2013, 11:11 PM   #5
RubiconTested
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Quote:
Originally Posted by austinaubinoe View Post
WTF!?!? Why would throwing in new gears mess up the computer?
I should have been more specific - only the auto trans will go into limp mode. The new for '12 A580 trans has a separate trans controller, that will not take the gear ratio change without re-programming. It will for some reason allow a big tire change without any problem.
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